Mr Benn was sacked late that same night after a telephone conversation with the Labour leader. His sacking set off a stream of resignations, starting early on Sunday morning.

The Angela4leader domain name was registered by Joe McCrea, a PR consultant from Matlock, Derbyshire, who worked as a special adviser in the Department of Health and in Downing Street during the early years of Tony Blair’s premiership.

Asked why he had registered it while she was still a member of Mr Corbyn's shadow cabinet, Mr McCrea said: “No comment.”"